Boiler-cleaner.



J. H. GLIPPBRTUN.

A BOILER CLEANER.

APPLICATION IILEI) DBO. v20, 1907.

930,647'. Ptentea Aug. 10, 1909.

an 11a, nto z ANDREW'. a. nimm ou.. PHoraumnsaAPMEns. wAsHmaruN D a JOHN `H. OLIPPERTON, OF SHERBURN, MINNESOTA.

BOILER-CLEANER.

To all whom it may concern.

Be it known that I, JOHN H. CL1PrER-- TON, citizen oi the United States, residing at Sherburn, in the county of Martin and State ol Minnesota, have invented certain new and useful Improvements in Boiler-Cleaners, of which the following is a speciiication.

The present invention relates to improvements in boiler cleaners and, aims to provide a novel device of this character by means of which scales and mud can be withdrawn from the interior of the boiler while the same is under a full headof steam.

"Ji/'hile the invention may be applied to any form of boiler it is particularly'designed for use in connection with threshing engines, since the threshermen are compelled to employ all kinds of water which necessitates the cleaning of the boiler at least once a week.

The ordinary method of cleaning a'boiler by removing the hand-hole plates and washing with cold water requires two men from six to eight hours and necessitates the waste of valuable time.

The object of the present invention has been to overcome this din'iculty by means oi a simple boiler cleaning device which is per manently mounted within the boiler and enables the scales and mud to be removed from the interior thereof without the necessity oi' relieving the steam pressure.

For a full description oi the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for eHecting the result, reference is to be had to the following description and accompanying drawings, in which:

Figure l is a longitudinal sectional view through a boiler having the cleaning device applied thereto. F ig. 2 is an end View of the boiler, portions being broken away. Fig. 3 is an enlarged detail view oi the scraping plate and rod for operating the same. Fig. 4 is a perspective view of the scraping plate detached.

Corresponding and like parts are referred to inthe following description and indicated in all the views oi' the drawings by the same reference characters.

The invention is shown as applied to a boiler 1 of the conventional construction, the said boiler being provided at its lower portion and toward opposite ends thereof with outlet openings 2 controlled by blow off valves of any approved type. In the present in- Specification of Letters Patent.

Application ined December 2o, 190,7.

so as to corres Patented Aug'. 10, 1909. Serial No. 407,308.

-' stance pipes 3 are threaded within the outlet openings so as to project upon the exterior oi' the boiler and the blow oil valves il are mounted within the pipes.

The inner walls of the boiler are perfectly smooth at the bottom thereof and slidably mounted upon the said bottom oi the boiler is a transversely disposed scraping plate 5. In the present instance this scraping plate `has an approximately segmental formation rior oi the boier. For the purpose of recip- -f rocating this scraping plate 5 back and forth across the bottom of the boiler a pair of operating rods 6 are utilized, the said rods passing through openings in one end of the boiler and suitable acking means being provided to prevent eakage around the said rods. A stuffing box 7 is threaded in each oi the openings through which the rods 6 eX- tend and the said stuiiing boxes project upon the exterior of the4 boiler and receive the packing glands 8. It will thus be apparent that by suitably manipulating the rods 6 the transverse scraping plate 5 can be reciprocated back and forth across the bottom of the boiler in such a manner as to loosen the scales and mud and cause the same to collect at the ends of the boiler adjacent the outlet openings 2. By opening the blow oil valves 4 for a very short period oi*l time the scales and mud thus collected at the ends oi' the boiler will be blown out by the pressure of the steam. Each oi the operating rods 6 is preferably formed in sections having a threaded connection as indicated at 9, the inner section oi' the rod or that carried by the scraping plate being of such a length as to project slightly beyond the stuffing box 7 when the scraping plate is moved against the end of the boiler. The outer end of the rod 6 is detached when the boiler cleaner is not in use and is simply threaded upon the inner section when it is desired to operate the scraping plate.

It will thus be apparent that with a boiler cleaner constructed in accordance with the resent invention the scales and mud can be withdrawn from the interior of the boiler in a comparatively' short period of time without the necessity o'frelieving the steam pressure.

The bottom of the boiler slopesri'rom opposite sides to a centralpoint and thc valvelcontrolled outlets are provided at the lowest ond to the shape of the intel point in the bottom oli' the boiler to insure the blowing ofi o'l' all scale or sediment when the valves 4 are opened.

The scraper 5 is of a' length to practically extend across the bottom from one side of the boiler to the other thereby insuring its action upon all sediment so as to loosen the same and move it toward either one of the outlets. By providing two operating rods 6 and having the same connected respectively to opposite ends o'f the scraper, the latter may be manipulated in a Way to insure removal oil' any scale or precipitate not loosened by ordinary movement ol' the scraper over the bottom. Moreover, by moving both of the operating rods 6,to ge'ther, the scraper is positively moved thereby preventing any torsion and a resultant binding o'l the rods in the stuiiing boxes. Should an end portion of the scraper come in contact with scale or other matter diliicult oi removal, this being readily determined by unequal strain or resistance upon one of the operating rods more than upon the other,

j the operating rod having connection with the end of the scraper in contact with the obstructing matter may be reciprocated, the other rod at the same time being held fast. The resiliency of the scraper admits of one or the other o'l the actuating rods being so actuated as to impart a vibratory movement to one end of the scraper, Whereas thc op )osite end is held stationary.

{aving thus described the invention, wh at is claimed as new is:

In combination a boiler having its bottom transversely curved and pro vided in its lowest portion near opposite ends with valvecontrolled outlets and having transversely spaced stuiiing boxes fitted to an end thereof, a scraper located within the boiler and eX- tending transversely thereof with its lower edge in contact with the bottom, rod sections attached to opposite ends ol' the scraper, and main sections detachably connected to said rod sections and adapted to operate through the aforesaid stulllng boxes, the parts admitting of the scraper being moved and remaining parallel to a given position, or admitting oi' either end oi the scraper being vibrated by one oi' the operating rods while the opposite end of said scraper is held stationary by the other operating rod.

ln testimony whereof I affix my signature in presence oi' two Witnesses.

JOHN H. CLIPPERTON.

W'itnesses 1 G. W. GRUWELL,

JOEL DETIENNE. 

